Apr. 01, 2020
As an HP Graphite Electrodes Supplier, share with you. Even if each graphite
electrode is the most advanced equipment and has the optimal control system, it
still has to operate according to production conditions and actual conditions.
Therefore, people have been working to optimize the production efficiency of
graphite electrodes. Graphite Electrodes steelmaking has evolved from a low-cost
smelting method that can only produce a small amount of commercial-grade steel
to a smelting technology that can produce various grades and qualities of steel
for continuous use. There are induction coils, graphite electrode accessories,
graphite electrode equipment and so on.
Just like every steelmaking plant is different-to adapt to specific production conditions, such as transportation conditions and power conditions, each graphite electrode is also different. Operators aim to meet specific process standards, so they adapt their production methods to local or market conditions. This does not mean that graphite electrode steelmaking has no prospects. On the contrary, graphite electrode designers have developed a variety of graphite electrodes to improve graphite electrode steelmaking, many of which have been installed or operated.
The cost of the charge (scrap, DRI, molten iron) may be the biggest factor in the cost of graphite electrode steelmaking. Therefore, in addition to obtaining certain product quality, many graphite electrode producers alternately change the charging mode in order to find the best production cost. Danieli has developed a feeding model for graphite electrode smelting stainless steel, which estimates that raw materials account for "more than 80% of production costs." Danieli's Lowest Cost Charge (LCC) model is designed to optimize graphite electrode charging by considering the production methods, influencing factors, and constraints including raw materials, time, and scrap inventory required for each furnace. This model takes the charge of each furnace as the calculation factor according to the total amount of scrap steel, ferroalloy, residual molten steel in the furnace and molten steel (if any), and provides different calculation modes and functions.
EAF process and BOF technology
As long as the first furnace is filled with molten iron, the top oxygen gun immediately begins to blow oxygen to decarburize the molten steel. After the decarburization phase is completed, quickly raise the oxygen lance and exit the furnace, and the electrodes are immediately in place. Continuously add DRI cold material while power is on. The second stage is carried out in the first furnace while the second furnace is in the refining stage. Therefore, the position of the electrode is adjusted for the second furnace.
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